17 Units too many?

I am wondering if 17 units this semester as a freshman is going to be too many. Originally I was taking only 14 units those being:
Calculus 2
Engineering Physics 1
English 1
US History 2
I didnt realize at the time that there was a mandatory freshman class that goes over study habits and how to go through college which now puts me at 17 units. I will be working but only the weekends. My question is whether or not I should drop one of the courses before its too late or wait and see the first week and how I think ill do in the classes.

The mandatory freshman class doesn’t seem like it should be much work. I think you will be OK.

Alright, that was what I was thinking too. I guess time will tell. Thanks for the reassurance!